Video processing device, video processing method and recording medium

Abstract

According to one embodiment, a video processing device includes a test pattern controller configured to output a test pattern to a display capable of displaying stereoscopically. The test pattern is indicative of whether a viewer is substantially at a center of a viewing area in which a video is viewed stereoscopically. The test pattern includes first to sixth parallax images corresponding to respective first to sixth viewing points arranged in a horizontal direction. The third parallax image and the fourth parallax image include a first mark The first parallax image and the sixth parallax image include a second mark different from the first mark. The second parallax image and the fifth parallax image include neither the first mark nor second mark.

The invention claimed is: 
     
       1. A video processing device comprising:
 a test pattern controller configured to output a test pattern to a display capable of displaying stereoscopically, the test pattern being indicative of whether a viewer is substantially at a center of a viewing area in which a video is viewed stereoscopically, 
 wherein the test pattern comprises a first, second, third, fourth, fifth, and sixth parallax image corresponding to a respective first, second, third, fourth, fifth, and sixth viewing point arranged in a horizontal direction, 
 the third parallax image and the fourth parallax image comprise a first mark, 
 the first parallax image and the sixth parallax image comprise a second mark different from the first mark, and 
 the second parallax image and the fifth parallax image comprise neither the first mark nor second mark. 
 
     
     
       2. The device of  claim 1 , wherein
 the first mark indicates that the viewer is substantially at the center of the viewing area, and 
 the second mark indicates that the viewer is not substantially at the center of the viewing area. 
 
     
     
       3. The device of  claim 1 , wherein
 the second mark in the first parallax image is displayed at a half of right side of an area corresponding to an area in which the first mark in the third parallax image is displayed, and 
 the second mark in the sixth parallax image is displayed at a half of left side of the area corresponding to the area in which the first mark in the third parallax image is displayed. 
 
     
     
       4. The device of  claim 1 , wherein the first, second, third, fourth, fifth, and sixth viewing points are arranged from right to left, the second mark in the first parallax image comprises a left arrow, and the second mark in the sixth parallax image comprises a right arrow. 
     
     
       5. The device of  claim 4 , wherein the second mark further comprises an up/down arrow displayed on a position different from a position on which the left arrow and the right arrow are displayed. 
     
     
       6. The device of  claim 1 , wherein the first mark comprises:
 a first proper mark displayed substantially on a center of a third parallax image and on a center of a fourth parallax image; and 
 a second proper mark displayed at a left side of the first proper mark and a right side thereof. 
 
     
     
       7. The device of  claim 1 , wherein the test pattern comprises a plurality of numerals, and
 each of the numerals is displayed on the display whose depth depends on a value of each of the numerals. 
 
     
     
       8. The device of  claim 7 , wherein
 at least one of the numerals is displayed so as to be viewed on the display, 
 at least one of the numerals is displayed so as to be viewed at a near-side of the display, and 
 at least one of the numerals is displayed so as to be viewed at a far-side of the display. 
 
     
     
       9. The device of  claim 1 , further comprising:
 a receiver configured to receive an input video signal inputted from outside; 
 a parallax image converter configured to convert the input video signal to a plurality of parallax images; and 
 an image output module configured to display the parallax image, the test pattern being superimposed on a part of the parallax image. 
 
     
     
       10. The device of  claim 9 , wherein the receiver is configured to receive, tune, and decode a broadcast wave to generate the input video signal. 
     
     
       11. The device of  claim 1 , further comprising:
 a viewing area information calculator configured to calculate a control parameter for adjusting the viewing area according to a viewing area adjustment signal inputted from outside; and 
 a viewing area controller configured to adjust the viewing area according to the control parameter. 
 
     
     
       12. The device of  claim 11 , wherein the viewing area information calculator is configured to calculate the control parameter for adjusting the viewing area in a left-right direction and in a front-back direction. 
     
     
       13. The device of  claim 12 , wherein, according to the control parameter, the viewing area controller is configured to:
 adjust the viewing area in a left-right direction by shifting a displaying position of the first, second, third, fourth, fifth, and sixth parallax images by a constant distance, and 
 adjust the viewing area in a front-back direction by shifting a displaying position of the first, second, third, fourth, fifth, and sixth parallax images, an amount of shift for the third parallax image and the fourth parallax image is different from an amount of shift for the first parallax image and the sixth parallax image. 
 
     
     
       14. The device of  claim 11 , wherein the viewing area information calculator is configured to calculate the control parameter for adjusting the viewing area by a first number of steps, and
 the test pattern comprises a viewing area adjustment pattern indicative of a present adjustment step. 
 
     
     
       15. The device of  claim 14 , wherein the viewing area adjustment pattern is a slide bar. 
     
     
       16. The device of  claim 11 , further comprising:
 a receiver configured to receive an input video signal inputted from outside; and 
 a parallax image converter configured to convert the input video signal to a plurality of parallax images, 
 wherein the viewing area controller is configured to adjust the viewing area when the parallax images of the input video signal is displayed according to the control parameter on which an adjustment result of the viewing area is reflected. 
 
     
     
       17. The device of  claim 11 , further comprising:
 a viewer position detector configured to detect a position of a viewer using a video taken by a camera, 
 wherein the viewing area information calculator is configured to calculate the control parameter so that the viewing area is set to an area according to the position of the viewer, and then, adjust the control parameter according to the viewing area adjustment signal. 
 
     
     
       18. The device of  claim 1 , further comprising a display on which the test pattern is displayed. 
     
     
       19. A video processing method comprising:
 outputting a test pattern to a display capable of displaying stereoscopically, the test pattern being indicative of whether a viewer is substantially at a center of a viewing area in which a video is viewed stereoscopically, and 
 adjusting the viewing area according to a viewing area adjustment signal inputted from outside, 
 wherein the test pattern comprises a first, second, third, fourth, fifth, and sixth parallax image corresponding to a respective first, second, third, fourth, fifth, and sixth viewing point arranged in a horizontal direction, 
 the third parallax image and the fourth parallax image comprise a first mark, 
 the first parallax image and the sixth parallax image comprise a second mark different from the first mark, and 
 the second parallax image and the fifth parallax image comprise neither the first mark nor second mark. 
 
     
     
       20. A non-transitory computer recordable medium configured to:
 store a test pattern indicative of whether a viewer is substantially at a center of a viewing area in which a video is viewed stereoscopically, 
 wherein the test pattern comprises a first, second, third, fourth, fifth, and sixth parallax image corresponding to a respective first, second, third, fourth, fifth, and sixth viewing point arranged in a horizontal direction, 
 the third parallax image and the fourth parallax image comprise a first mark, 
 the first parallax image and the sixth parallax image comprise a second mark different from the first mark, and 
 the second parallax image and the fifth parallax image comprise neither the first mark nor second mark.